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Mice Study Reveals Neurons Influence Arousal and Timing

9/24/2025

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Summary

Story summary

Champalimaud Foundation reports spinal cord Galanin-expressing (Gal+) neurons modulate male mice arousal and ejaculation timing.
They integrate sensory input, challenging the idea that the brain alone governs arousal.
In mice, Gal+ neuron stimulation did not always trigger ejaculation, unlike rats.
Future work will study Gal+ activity during natural mating and brain-prostate connections.

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Story summary

Champalimaud Foundation reports spinal cord Galanin-expressing (Gal+) neurons modulate male mice arousal and ejaculation timing.
They integrate sensory input, challenging the idea that the brain alone governs arousal.
In mice, Gal+ neuron stimulation did not always trigger ejaculation, unlike rats.
Future work will study Gal+ activity during natural mating and brain-prostate connections.